#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <netdb.h>
#include "../common/function.h"

int main(int argc, char *argv[])
{
	int i;
	struct hostent *host;
	struct sockaddr_in addr;
	if (argc != 2) {
		printf("Usage : %s <IP> \n", argv[0]);
		exit(1);
	}

	memset(&addr, 0, sizeof(addr));
	addr.sin_addr.s_addr = inet_addr(argv[1]);
	host = gethostbyaddr((char*)&addr.sin_addr, 4, AF_INET);
	if (!host)
		error_handling("gethost error");

	printf("Official name:%s \n", host->h_name);
        for (i = 0; host->h_aliases[i]; i++)
        printf("Aliases %d: %s \n", i+1, host->h_aliases[i]);
    printf("Address type: %s \n",
        (host->h_addrtype == AF_INET) ? "AF_INET" : "AF_INET6");
    for (i = 0; host->h_addr_list[i]; i++)
        printf("IP addr %d: %s \n", i+1,
            inet_ntoa(*(struct in_addr*)host->h_addr_list[i]));
    return 0;
}